<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>Document</title>
    <style>
        div {
            width: 200px;
            height: 200px;
            background-color: skyblue;
            border: 10px solid red;
            padding: 11px;
        }
    </style>
</head>

<body>
    <div></div>
    <script>
        /* 
            client 和 offsetWidth 最大的区别就是 是否包含 border
            clientWidth = width + padding
            clientTop = border
        */
        var div = document.querySelector('div');

        // 242 = 200 + 10 * 2 + 11 *2
        // offsetWidth = width + border + padding
        console.log(div.offsetWidth);
        // 8  有定位的父级的距离
        console.log(div.offsetLeft);

        // 222 = 200 + 11 * 2
        // clientWidth = width + padding
        console.log(div.clientWidth);
          // 222 = 200 + 11 * 2
        // clientHeight = height + padding
        console.log(div.clientHeight);

        // 10  border
        console.log(div.clientTop);
        console.log(div.clientLeft);


    </script>
</body>

</html>